Controlling device for the regulating members of clocks



(No Model.)

- W. S. SCALES.

OONTROLLING DEVICE FOR THE REGULATING MEMBERS OF CLOCKS.

No. 395,357. Patented Jan. 1, 1889.

lFFlCE.

\YILLTAM S. SCALES, OF SOMERYILLE, ASSIGXOR, BY DIRECT AXD MESXEASSIGNMENTS, TO ROYAL E. ROB EINS, OF IZOS'JOX, )IASSAtIll'SE'lTS.

CONTROLLING DEVlCE FOR THE REGULATING MEMBERS OF CLOCKS.

SPECIFICATION forming part of Letters Patent No. 39

5,357, dated January 1, 1889.

Application filed March 17, 1888. $erial No. 267,457. 1N0 modeld T aZZ207mm zit 72mg concern.-

Be it known that I, \VILLLUI S. SCALEs, of Somerville, in the county ofMiddlesex and State of Massachusetts, have invented an Im- 5 provementin Controlling Devices for the Regulating Members of Clocks, of whichthe following description, in connection with the accompanying drawings,is a specification, like letters on the drawings representing likeparts.

This invention has forits object to provide means for regulating clocksfrom a distance,

whereby the regulating members of one or several secondary clocks maybeso controlled or governed that the clocks shall be made to gain or lose,as necessity requires, to corre-v spond with the master-clock.

In accordance with this invention, it is designed that the regulatingmembers during each movement shall overcome a suitableresistance, andthat this resistance shall be variable and controllable from a distance,as

l i l from the master-clock. As a preferable way to carry out my presentinvention, a flat sprin or spring-like strip is attached at one end ofthe verge of the escapcment or to the penduhim-rod, and the outer orfree end of the said spring is held by an operating lever or barcontrolled, directly or indirectly, by an electro- Q cuit caused by themaster-clock. Any movement of the operating bar or lever lengthens orshortens the spring, so as to increase or decrease its reacting force orto vary the resistant ot' the regulating member. The spring may beattached to the operating-liar and its end be held by a bar orlever-rigidly attaehml t0 the verge or pendulum or to the pendulumdirect.

Figure 1 shows the eseapement of an ordinary clock and means for varyingthe ,res'st ance of the verge in accordance with this invent-ion. Fig. 2is a detail showing the vari able resistance connected with the pointer,and Pi is a modification to be referred to.

Referring to Fig. l, the escape-wheel (I and the verge l) are as nowcommon in ordinary clocks. The resistant shown in Fig. 1. consists of afiat spring, I), or a spring-acting strip, one end of which is attachedto the verge I), while its other or free end is held loosely beo magnetwhich is effected by changes in a cir tween two pins, 2, attached to orprojecting from the operating bar or lever (7. pivoted to the upper endof a lever, the said operating bar or lever 1] being moved horizontallyor l longitinlinally in one or the other direction by 3 the lever c. Asthe operating bar or lover (I is thus moved ln'irizontally orhmgitudinally,

the spring 1: is lengthened or shortened. The lever fis pivoted at ornear its center. as at f, and has loosely (onuected with it at its lowerend a controllinglever, e, having upon its under side a projection orear, 7, provided with a V-shaped recess. The lever c at its outer endrests upon or between pins -.l', attached to the lever c, pivoted at v,the outer end of said lever cz'irrying the armature I5 of theelectro-magnet c". The lever 1' also has an ear, 3, provided with a pinwhich enlers the V-shaped notch in the disk 20. An arm, S, is fixed tothe shaft, upon which the disk 2o is mounted, which co-operates with theV- shaped ear 7 of the lever c.

The levers c and w and the co-op(i-rating parts are the same as shown inapplication for United States Patent, Serial No. $35,454:, tiled by meNovember 13., 'lSRT, and indicated by like letters, to which relm-encemay be had.

It will be seen that as the verge I; is moved the spring Z1 is bentlirst in one and then in So the opposite direction, and whenthe verge isat an intermediate point the spring otters no j resistance; but asthespring isbent in oneor the other direction. by the movement of the vergethe resistance gradually increases.

As the lever d is moved in one or the other direction longiludinally,1hespring is lengihened or shortened, and hence the resistz'lnee varies. lherein term theresistant a variable resistant,meaning one in which Iheresistance gradually increases as the verge moves in one or the otherdirection, and not to the variations given to the resistanceby thelongitudinally-moving rod (7, such movement increasing or decreasing theamount of variations.

In Fig.2, l have also shown the resistant as a flat spring, 1', attachedat one end to the pendulum 1', its outer or [free end being held by anoperat ing bar or lever, adapted to he moved to lengthen or shorten thespring.

In Fig. 3,1 have also shown a tiat spring, a, as a resistant, itbeingattached at one end to the longitudinally-opcrating bar or lever, n, andits outer or free end being held by a lever or arm, n fixed to thevergeof the escape ment.

In the instances shown in Figs. 2 and 3 a similar result is accomplishedas by the device shown in Fig. 1..

I claim 1. The combination, with the escapement (L and verge b, of aresisting-spring for the verge, the operating bar or lever for varyingthe force or resistance of said spring, and an electro-magnet for movingor controlling the movement of said operatin bar or lever, substantiallyas described.

2. The combination, with the regulating or G. W. GREGORY, F. L. EMERY.

